Respectful disagreements are disagreements that still allow the other person their own opinion. Discussions are showing an interest in understanding why another feels a certain way. We listen intently as they explain themselves and are free to admit any error in our own ways of thinking. A discussion is a cooperative effort and seeks resolution resulting in a peaceful end even when there are disagreements. Discussions help all to gain a better understanding of both sides of the issue.
We aren't here to convert anyone to our way of thinking. We are here to share and possibly learn from each other. Beliefs are so open and personal that it is pointless to pick apart another person's post and then challenge it. Let each person do their own picking in the garden of your vast experience.